Unverified50% confidenceBenchmarkExact time
Grok 4 was released in mid-2025 and reached a level competitive with GPT-4o and Claude Opus on multiple benchmarks.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
8/13/2026
First Seen
Valid until: 11/11/2026
Sources
Cursor惊现Grok 4.6：xAI疑似灰度测试新模型
Related Claims
UnverifiedGrok 4.5's capabilities have not yet fully reached the level of Claude 5 or GPT 5.5, but it strikes a balance among capability, latency, and price.75% similarUnverifiedGrok 4.5 achieved 83.3% on the Terminal Bench benchmark, roughly on par with GPT 5.5 and slightly below Claude 5.74% similarUnverifiedIn coding capability, Grok 4.5 is roughly on par with Opus 4.8 and GPT 5.5, but has the fastest response speed.74% similarUnverifiedThe GPT-5.6 series achieves performance equal to or higher than Opus 4.8 and Fable 5 at a lower cost across multiple benchmarks.73% similarUnverifiedThe Minecraft clone generated by Grok 4.5 ranked third among all top models, with the top two being Fable 5 and GPT 5.5.72% similar
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